[BUG FIX] minicpm (#18739)

Signed-off-by: huangyuxiang03 <huangyx0321@gmail.com>
Co-authored-by: huangyuxiang03 <huangyx0321@gmail.com>

Author: huangyuxiang03

vllm/model_executor/models/minicpm.py

@@ -242,9 +242,6 @@ def __init__(
             base=rope_theta,
             rope_scaling=rope_scaling,
         )
-        # set rope as fp32 instead of bf16
-        self.rotary_emb.cos_sin_cache = self.rotary_emb._compute_cos_sin_cache(
-        )
         self.attn = Attention(self.num_heads,
                               self.head_dim,
                               self.scaling,